8 Questions
The 2-Stroke Cycle is a more complex version of the 4-Stroke Cycle.
False
The displacement of an engine is measured in kilometers per liter.
False
The crankshaft converts piston motion into rotary motion.
True
Horsepower is a measure of engine torque.
False
The camshaft operates the valves, allowing air and fuel into cylinders.
True
Fuel efficiency is measured in miles per hour.
False
The electric engine uses fuel combustion to generate power.
False
The 4-Stroke Cycle consists of intake, compression, power, and exhaust stages.
True
Study Notes
Engine
Types of Engines
- Internal Combustion Engine (ICE): Most common type, uses fuel combustion to generate power
- Electric Engine: Uses electric motors, powered by batteries or generators
- Hybrid Engine: Combination of ICE and electric motor
Engine Components
- Cylinders: Chambers where fuel is ignited to produce power
- Pistons: Move up and down in cylinders, driven by explosive force
- Crankshaft: Converts piston motion into rotary motion
- Camshaft: Operates valves, allowing air and fuel into cylinders
- Valves: Control air and fuel flow into cylinders
Engine Cycles
-
4-Stroke Cycle:
- Intake: Air and fuel mixture enters cylinder
- Compression: Mixture is compressed
- Power: Mixture is ignited, piston moves down
- Exhaust: Exhaust gases exit cylinder
- 2-Stroke Cycle: Simplified version, used in some small engines
Engine Performance
- Horsepower (HP): Measure of engine power
- Torque: Rotational force, measured in lb-ft or Nm
- Displacement: Engine size, measured in liters (L) or cubic centimeters (cc)
Engine Efficiency
- Fuel Efficiency: Measured in miles per gallon (mpg) or kilometers per liter (km/L)
- Emissions: Engine emissions, regulated by environmental standards
Engine Types
- Internal Combustion Engine (ICE): uses fuel combustion to generate power
- Electric Engine: uses electric motors, powered by batteries or generators
- Hybrid Engine: combines ICE and electric motor
Engine Components
Cylinders and Pistons
- Cylinders: chambers where fuel is ignited to produce power
- Pistons: move up and down in cylinders, driven by explosive force
Crankshaft and Camshaft
- Crankshaft: converts piston motion into rotary motion
- Camshaft: operates valves, allowing air and fuel into cylinders
Valves
- Control air and fuel flow into cylinders
Engine Cycles
4-Stroke Cycle
- Intake: air and fuel mixture enters cylinder
- Compression: mixture is compressed
- Power: mixture is ignited, piston moves down
- Exhaust: exhaust gases exit cylinder
2-Stroke Cycle
- Simplified version, used in some small engines
Engine Performance
- Horsepower (HP): measures engine power
- Torque: rotational force, measured in lb-ft or Nm
- Displacement: engine size, measured in liters (L) or cubic centimeters (cc)
Engine Efficiency
- Fuel Efficiency: measured in miles per gallon (mpg) or kilometers per liter (km/L)
- Emissions: regulated by environmental standards
Learn about internal combustion engines, electric engines, hybrid engines, and their key components like cylinders, pistons, and crankshaft.
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